I'm a bit suspicious of the Atkins bars so i stay away from them. They use "net carbs" and show just a few grams but the reality is that they have a LOT more carbs in them, which they tell us doesn't effect ketosis because these other carbs don't get absorbed. However, i've seen too many people have ketosis effected by these bars (myself included) i just don't believe them, lol. I'd probably only use them in an emergency myself.